 |
| |||
| 被动与主动 | |||
|
passive and active : 24 phrases in 8 subjects |
| Air defense | 2 |
| Aviation | 6 |
| Business | 2 |
| Earth sciences | 2 |
| Electronics | 3 |
| General | 1 |
| Space | 6 |
| Technology | 2 |
|
| |||
| 被动与主动 | |||
|
passive and active : 24 phrases in 8 subjects |
| Air defense | 2 |
| Aviation | 6 |
| Business | 2 |
| Earth sciences | 2 |
| Electronics | 3 |
| General | 1 |
| Space | 6 |
| Technology | 2 |